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Robust fault detection for networked control systems with packet dropouts: An average dwell time method

机译：具有数据包丢失的网络控制系统的鲁棒故障检测：平均停留时间方法

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摘要

The problem of fault detection for networked control systems with respect to packet dropouts is investigated in this paper based on average dwell time method. For the cases that there may be sensor stuck failure and packet dropouts, the networked control systems are modeled as discrete time switched systems. Subsequently, a novel fault detection scheme, which is valid to detect the failures with small magnitudes even the outage ones, is proposed by making the generated residuals sensitive to servo inputs in faulty cases and robust against it in normal case. By utilizing the average dwell time method, new sufficient conditions, which include some existing results, for characterizing the sensitivity performance and the attenuation performance are presented in terms of linear matrix inequalities. Meanwhile, the relation between the packet dropout rate and the system performance is established. Finally, an application of a linearized aircraft is given to demonstrate the effectiveness of the proposed results. Copyright (c) 2014 John Wiley & Sons, Ltd.
机译：基于平均停留时间方法，研究了网络控制系统中与丢包有关的故障检测问题。对于可能出现传感器卡住故障和数据包丢失的情况，将网络控制系统建模为离散时间交换系统。随后，提出了一种新颖的故障检测方案，该方案可通过使产生的残差在故障情况下对伺服输入敏感，并在正常情况下对其产生鲁棒性，从而有效地检测甚至是小故障的小故障。通过使用平均停留时间方法，以线性矩阵不等式的形式提出了新的充分条件，其中包括一些已有的结果，用于表征灵敏度性能和衰减性能。同时，建立了丢包率与系统性能之间的关系。最后，给出了线性飞机的应用以证明所提出结果的有效性。版权所有（c）2014 John Wiley＆Sons，Ltd.

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